38
200 400
600 800
1,000 1,200
Production Forests on
other lands Conversion
Conservation Protection
Landuse unknown
M illio
n t C
O 2
-e
Figure 12.
Emissions from deforestation between -
by forest function classes.
2.3.4 Discussion: comparison with other studies
.
Several studies have been conducted which also provide estimates of CO missions from deforestation in ndonesia. The
Stern Report , have used the Climate Analysis ndicator Tool CAT developed by WR, as their emissions data source..
The data in the CAT tool are based on deforestation values from FAO Global forest assessment
that were combined with carbon stock and flux data from Asia no data available from individual countries . The deforestation rate for the period
- reported in the FAO
assessment is . million hayr, slightly lower than the . million hayr reported in the FAO
report for the period -
. The carbon fluxes were allocated according to the deforestation proportion for each country in Asia.
The resulting emissions from deforestation in ndonesia based on the CAT tool were estimated to be ,
M t CO -eyr or of total emissions for ndonesia for the
- period. n contrast the estimate determined
in the analyses undertaken for this study was million t CO -eyr for the
period -
, about of the estimates provided by the CAT tool.
]
http:cait.wri.org
]
FAO .
39
The main source of difference in the previous estimates and those reported here is in the estimation of carbon stock in the biomass and in the area
deforested. Based on emission estimates and rates of deforestation used in CAT tools,
the rate of CO emission from deforestation is tonne CO
per ha, equivalent to
tonne Carbon. More recent empirical data indicates that this value is too high. The average carbon stock for tropical forest in Asia
appears to be about t per ha . Based on destructive sampling, the total
carbon stock in the virgin forest of Kalimantan is in the range of to
tCha . These figures alone reduce the estimates by greater than half. n addition, the estimate of deforestation derived from this study is
. million ha per year compared to the . and . million ha per year reported in the two FAO forest assessment reports. Estimates of emissions
have also been based on a conservative estimate of the area of peat forest burnt and the depth to which the fires burned.
]
Gibbs et al.
]
Yoneda et al. ; Ruhiyat
.
40
41
Building the infrastructure for REDD in Indonesia
3.1 Introduction
